Discover air pressure like never before with just a balloon and a bottle.This is an excellent teaching tool for introducing pressure and discussing its applications, such as vacuum cleaners, flight, pumps, weather, and even how we breathe.
This durable, thick rubber mat has a simple design that demonstrates a powerful concept: atmospheric pressure. Pick up an ordinary flat lab stool or try to lift the mat off a table, which is nearly impossible. Show how suction cups stick because of the pushing force of air, not from a pulling “suction” force. Explore additional physics concepts such as surface area, force, vacuums, and pressure.